Flex :: Referencing All Data In TileList

I have 2 TileList component in my Flex application. 1 tilelist is filled with data much like following xml sample:
<person name="Test">
<likes>Flex</likes>
<likes>PHP</likes>
</person>
<person name="test2">
[Code] .....
data shown is the preference.

The user can click the first tilelist and then the items that person "likes" should be selected in the second tilelist (in other words they lit up). Click event on my first tilelist
private function highlightPreferences(e:ListEvent):void{
trace(e.currentTarget);
//and now I'm stuck
}